AltAmont turbines: still A threAt - Golden Gate Audubon Society

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AltAmont turbines: still A threAt - Golden Gate Audubon Society
the newsletter of the golden gate audubon society // vol. 105 no. 4 fall 2021

Altamont Turbines:
Still a Threat
by blake edgar

A       t 40 years, the Altamont Pass Wind Resource
        Area is one of the nation’s oldest wind farms—
and remains one of the deadliest to birds. Golden
Gate Audubon Society and environmental allies
thought they’d reduced that threat by as much as
80 percent in 2010, through a repowering agreement
with Altamont’s largest wind operator that involved
replacing older turbines with modern ones that were
taller, fewer, and more widely spaced.
CONTINUED on page 3

Golden Eagle.
George Eade
AltAmont turbines: still A threAt - Golden Gate Audubon Society
other threatened species.
                                                                                                                       Global good news is harder to come by.
                                                                                                                    The sixth Intergovernmental Panel on Cli-
                                                                                                                    mate Change report was released over the
                                                                                                                    summer, stressing that we must act quickly
                                                                                                                    to avoid the most catastrophic impacts.
                                                                                                                    Wind and solar energy are critical compo-
                                                                                                                    nents of any pathway to zero emissions. As
                                                                                                                    recounted in this month’s cover story on
                                                                                                                    Altamont Pass, we in the Bay Area know
                                                                                                                    the dangers of badly sited wind energy. Yet
                                                                                                                    we also understand that wind is a neces-
                                                                                                                    sary piece of the puzzle: Wind power can
                                                                                                                    be generated at night and on cloudy days
                                                                                                                    when solar may not meet consumer needs.
                                                                                                                    So we must remain vigilant and work with
                                                                                                                    wind-power developers to ensure that sit-
                                                                                                                    ing of future wind projects doesn’t create
Bob Lewis

            Sandhill Cranes.                                                                                        further problems for wildlife.
            Loggerhead Shrike is among the birds found at Tesla Park.                                                  An alternative, more wildlife-friendly
                                                                                                                    approach to renewable energy involves dis-
                                                                                                                    tributed generation. A 2016 study found
                                           Good News Amidst                                                         that California has enough sun, rooftops,
                                            Our Many Crises                                                         and parking lots to provide for most of our
                                                                                                                    energy needs without building a single
                               by glenn phillips, executive director                                                new commercial-scale wind or solar farm.

            a
                                                                                                                    As the state moves towards its goal of 100
                  fter a summer filled with bad news,               ship in Sacramento from Senator Steven          percent renewable energy by 2045, we
                  I’m grateful to report some positive              Glazer and Assemblymember Rebecca               should push for greater use of distributed
            developments. Tesla Park—a 3,100-acre                   Bauer-Kahan, and support from Assem-            solar panels that don’t destroy habitat or
            open space area in Livermore’s hills—is                 blymember Phil Ting and Senator Nancy           threaten birds and other wildlife.
            now finally protected, thanks to years of               Skinner. Governor Newsom agreed in early           One final piece of good, albeit local,
            work by a coalition of more than thirty                 September to transfer the land from the         news... Golden Gate Audubon success-
            groups including Golden Gate Audubon                    state’s off-road vehicle program to state       fully restarted our field trip program this
            Society, Ohlone Audubon, and the Califor-               parks, while returning funds to the off-        summer after a 16-month Covid-19 hia-
            nia Native Plant Society.                               road vehicle program for a suitable location    tus. Nearly 600 people participated in 35
               Save Tesla Park was a passion project                elsewhere. Tesla Park is home to unique         trips around the region without any health
            for Celeste Garamendi, Nancy Rodrigue,                  geological, biological, and cultural features   problems at all. Thank you to all who par-
            and many others on the Save Tesla                       that include three nesting pairs of Golden      ticipated, and we look forward to opening
            Park Steering Committee, with leader-                   Eagles and important habitat for at least six   more spaces in our programs this fall.

            news briefs

            Help Enforce Rodenticide Ban                           Victory at Tesla Park                            Bird-friendly Coffee Club
            California has a new law banning most use of           Conservation groups including local Audubon      Protect habitat for wintering songbirds in Central
            second-generation anticoagulant rodenticides           chapters won a victory in September when         America while enjoying superb organic, shade-
            (SGARs), which can kill hawks, owls,                   Governor Newsom signed legislation banning       grown coffee through our Bird-friendly Coffee Club.
            coyotes, and other predators that eat rats             off-road vehicles from sensitive habitat known   Birds & Beans coffee is certified by the Smithsonian
            with poison in their systems. Help enforce             as Tesla Park in eastern Alameda County. The     Migratory Bird Center. Order once a month and pick
            this law by reading labels of bait traps in your       3,100 acres—which support at-risk species such   up your coffee at a location in Berkeley, Oakland, or
            neighborhood: goldengateaudubon.org/blog-posts/        as Golden Eagles and California red-legged       San Francisco. See goldengateaudubon.org/login/
            help-enforce-californias-rodenticide-ban.              frogs—will now become a California state park.   bird-friendly-coffee-club.

            2   THE GULL   fall 2021
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features

                ALTAMONT TURBINES from page 1

                    Yet those hopes have not been realized.
                    “We were wrong when we relied on the
                theory that well-sited repowered turbines
                would significantly reduce bird mortal-
                ity,” said Mike Lynes, who worked on the
                Altamont settlement for GGAS and is now
                Director of Public Policy for Audubon
                California.
                    Studies released in 2017, 2018, and 2020
                indicate that repowering hasn’t benefitted
                many of the bird species most affected by
                Altamont turbines. The repowered turbines
                also seem to be having greater impacts on
                                                               Elizabeth Winstead

                bats.
                    “We’ve learned there is no place in
                Altamont that is safe for birds: It varies
                from extreme risk to very bad risk,” said
                                                                                    Golden Eagle near an Altamont turbine.
                GGAS Executive Director Glenn Phillips.
                    The Altamont wind area covers 56
                square miles of northeastern Alameda and                            “We’ve learned there is no place in Altamont that is safe
                Contra Costa counties. It supports one of
                North America’s densest populations of
                                                                                    for birds: It varies from extreme risk to very bad risk.”
                Golden Eagles, as well as other raptors and
                bats—all of which face lethal injuries from
                                                                                    gists would assess the degree of bird deaths   Alameda County approved Brookfield’s plan
                the spinning blades.
                                                                                    related to wind power. The PEIR estab-         for up to 36 new turbines generating 80
                    In the wake of the 2010 repowering
                                                                                    lished mortality thresholds and mitigation     megawatts—more than the 50 megawatts
                settlement, Alameda County authorized
                                                                                    measures for repowering projects.              previously generated by older turbines on
                a Program Environmental Impact Report
                                                                                       Subsequent studies have determined          that same site.
                (PEIR) covering its portion of the Altamont,
                                                                                    that Altamont is an ecological sink for           “These repowered turbines may well
                with the intent to minimize repowering’s
                                                                                    Golden Eagles, who are drawn there             have greater impacts on raptors and bats
                toll on wildlife. Four focal raptor species
                                                                                    by prime foraging opportunities in the         in the Altamont than the former project,”
                (Golden Eagle, Red-tailed Hawk, Western
                                                                                    grasslands. Biologist Shawn Smallwood          Lynes said.
                Burrowing Owl, and American Kestrel)
                                                                                    estimates that—despite repowering and             Golden Gate Audubon and allies are
                were selected as standards by which biolo-
                                                                                    winter turbine shutdowns—the number            appealing the decision before the Alam-
                                                                                    of eagles declined by 45 percent between       eda County Board of Supervisors, which is
                                                                                    2008 and 2019.                                 expected to hear the appeal in October.
                                                                                       Golden Gate Audubon continues to               For Phillips, who watched Altamont’s
                                                                                    monitor new wind proposals for PEIR com-       wind turbines from his childhood bed-
                                                                                    pliance and for ways to minimize mortality.    room window, the time has come to restrict
                                                                                    In 2020, GGAS and Audubon California           further wind development there. Without
                                                                                    appealed Alameda County’s approval of          question, wind power is needed as a tool
                                                                                    a project adding 40 turbines generating        against climate change, he said. But wind
                                                                                    almost 110 megawatts, which would have         farms should be limited to places that do
                                                                                    been Altamont’s largest individual wind        less damage to wildlife.
                                                                                    farm. Negotiations among various stake-           “If this were a new area that hadn’t been
                                                                                    holders persuaded the developer, sPower, to    developed for wind before, it would never
                                                                                    reduce it to 16 turbines and 50 megawatts.     happen,” Phillips said. “This is the textbook
                                                                                       Now GGAS, Audubon California, and           case study for badly sited wind energy.”
                                                                                    three other local Audubon chapters are            Do you live in Alameda County? Contact
Harjeet Singh

                                                                                    raising the alarm about another proposed       your county supervisor and urge them not to
                                                                                    development, Brookfield Renewable’s Mul-       approve the Mulqueeney Ranch project as
                Golden Eagle.                                                       queeney Ranch Wind Repowering Project.         proposed.

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features

                                       Oysters, climate change
                                             and Pier 94
                                                            by noreen weeden

p       ier 94, our habitat restoration site along San Francisco’s
        southeastern shoreline, is a potential oyster hotbed!
    No, we’re not talking about turning Pier 94 into the next Hog
Island Oyster Company. These are a different kind of oyster—tiny,
native oysters that make better eating for wildlife than for humans,
and that could become part of our defense against climate change.
    The smallest oyster in the U.S., Olympia oysters (Ostrea lurida)
are the only species native to the West Coast. They provide food for
birds such as sea ducks and Black Oystercatchers, as well as rock
crabs, bat rays, and sea otters. They also improve water quality by
filtering over 5 gallons of water per hour while consuming micro-
scopic plants known as phytoplankton.
    Today oyster beds can be part of a climate adaptation strategy

                                                                                                                                                             Noreen Weeden
called “living shorelines”—using natural materials like plants and
sand rather than concrete sea walls to prevent erosion and counter
increased storm surges.
                                                                             Monitoring oysters and tiles at Pier 94.
    Olympia oyster populations plummeted in San Francisco Bay
over the last century due to overharvesting, pollution, and habitat
loss. But a recent pilot effort shows we may be able to foster an            and older surviving oysters.
oyster colony at Pier 94, the salt marsh restoration site that Golden            SERC attributed this success to factors including cooler air tem-
Gate Audubon Society manages for the Port of San Francisco along             peratures than other parts of the Bay and the absence of a predatory
the city’s southeastern waterfront.                                          mollusk called an oyster drill.
    Over the past two years, scientists from the Smithsonian Envi-               “(We) recommend Pier 94 as a site where oyster restoration
ronmental Research Center (SERC) installed ceramic tiles in a                efforts that deploy additional hard substrate for oysters to settle on
subtidal section of the Pier 94 shoreline. Aided by Golden Gate              is likely to be successful,” the researchers concluded.
Audubon volunteers, they tracked the number and size of oysters                  The next step will be to seek grant funding for oyster restoration
that attached themselves to the tiles, a process called “recruitment”        at Pier 94 on a larger scale. A flourishing oyster population there can
that young oysters need to grow into adulthood.                              help promote oyster repopulation throughout the Bay.
    SERC’s final report, delivered in 2021, found Pier 94 an “excel-             So Pier 94 won’t ever be a trendy Hog Island-style oyster bar. But
lent site for oyster restoration.”                                           with financial support and the continuing commitment of Audubon
    Oysters attached themselves to the tiles at a high rate. They were       volunteers, it could be something even better—a shellfish buffet for
found at a variety of sizes, indicating a healthy balance of younger         Bay wildlife and a test case for climate adaptation.

Upcoming events

Berkeley Bird Festival                 2021 Christmas Bird Counts            Be a Lake Merritt Docent                   Nature Journaling Class
Sunday, October 17 — all day           Oakland: Sunday, Dec. 19              Share views and information                We still have spaces in our
U.C. Berkeley & various locations      San Francisco: Tuesday, Dec. 28       about Lake Merritt’s birds with            Nature Journaling at Lake Merritt
Join us for the first-ever Berkeley    Richmond: Sunday, Jan. 2, 2022        people strolling around the lake!          class, taught by artist and nature
Bird Festival! Bird walks throughout   Spend a fun day in the field          You don’t need to be an expert             educator Clay Anderson. Class
the city, bird chalk art on the        contributing to community science,    birder, just enthusiastic about our        includes one Zoom session plus
U.C. campus, and family-focused        or count birds in your backyard for   wintering ducks and other birds.           one field trip to Lake Merritt
crafts plus avian art performances     our Feeder Watch. Beginning and       We offer a mid-October training            each month through June 2022.
at the David Brower Center in          experienced birders are warmly        for the winter docent season. For          For details and sign-up, see
downtown Berkeley. For details, see    welcome. Registration opens late      details, please email Maureen at           goldengateaudubon.org/education/
berkeleybirdfestival.org.              October: goldengateaudubon.org/cbc.   mlahiff@aol.com.                           classes.

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speaker series

                                                                       Shawn Smallwood

                                                                                                                                                                      Roger van Gelder
Burrowing Owls.                                                                          Acorn Woodpecker.

Bringing Back the                                online
                                                                                         Climate and Birds                                 online

Burrowing Owl                              Thursday, October 21
                                           7 p.m. program
                                                                                         in California                                Thursday, November 18
                                                                                                                                      7 p.m. program
doug bell and shawn                        Zoom
                                                                                         mike lynes                                   Zoom
smallwood

The East Bay used to support many colonies of Burrowing Owls,                            North America’s bird populations have declined by approximately
from the shorelines along eastern San Francisco Bay to the Diablo                        3 billion birds since 1970 and two-thirds of North America’s bird
Range. Those have now been reduced to overwintering sites along                          species now face an even greater risk of extinction due to climate
the shore and tenuous colony sites inland, including within the                          change. Species at risk include not only ones that are already endan-
boundaries of the Altamont Pass Wind Resource Area (APWRA).                              gered, but common backyard birds like Chestnut-backed Chickadees,
However, the APWRA has been a major mortality source for Bur-                            as detailed in Audubon’s landmark 2018 study, Survival By Degrees.
rowing Owls and other winged wildlife such as bats and Golden                               But Audubon isn’t taking this threat sitting down. During this
Eagles. Doug Bell and Shawn Smallwood will present results of                            presentation, Mike Lynes of Audubon California will discuss the
long-term research on Burrowing Owl colonies within the APWRA                            threats to birds from climate change and how the statewide group
and management efforts conducted on East Bay Regional Park                               is working with chapters, allies, and decision-makers to imple-
District lands in the region, including volunteer-based habitat res-                     ment climate-smart policies that reduce greenhouse gas emissions,
toration programs.                                                                       responsibly develop renewable energy, and build more resilient com-
   Shawn Smallwood earned his Ph.D. in Ecology at U.C. Davis and                         munities of birds and people. Mike will explain how nature-based
has studied wildlife impact from wind turbines for 20 years. His                         climate solutions and policies like California’s “30 by 30” initiative
research includes animal density and distribution and habitat selec-                     will expand parks, open spaces, wetlands, and coastal areas to meet
tion. Doug Bell serves as Wildlife Program Manager for the East                          climate goals and benefit both people and birds.
Bay Regional Park District and as a Research Associate in ornithol-                         Mike Lynes is Director of Public Policy for Audubon California.
ogy and mammalogy at the California Academy of Sciences. He has                          He formerly served as Executive Director of Golden Gate Audu-
engaged in long-term studies of Golden Eagles, Prairie Falcons, and                      bon Society after working as field ornithologist and conservation
other raptors with an emphasis on assessing and lessening impacts                        biologist with the Point Reyes Bird Observatory (now Point Blue
from renewable energy development.                                                       Conservation Science).

                          For Zoom links, see goldengateaudubon.org/education/speaker-series.

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features

                                  New Christmas Bird Count
                                    Coming to Richmond
                                                           by ilana debare

g       olden Gate Audubon Society is known for two longstanding
        Christmas Bird Counts—our San Francisco count, which
started with the organization’s founding in 1917, and our Oakland
count, which started in 1938.
    Now GGAS is taking the historic step of adding a third Christ-
mas-season count in Richmond, a community whose abundant bird
life has been overlooked for too long.
    “Western Contra Costa County has three designated Important
Bird Areas—Brooks Island, the North Richmond shoreline, and
other Eastshore wetlands such as Miller-Knox Regional Shore-
line—yet it’s never had an official CBC,” said GGAS Executive
Director Glenn Phillips.
    CBCs are carried out by local Audubon volunteers but overseen
by the National Audubon Society, which imposes certain techni-
cal requirements: Each count must cover a 15-mile-diameter circle,
and it can’t overlap with any other count circles.
    No one ever made an explicit decision to exclude Richmond from
the CBC. But in the wake of World War 2, redlining and racial
discrimination turned Richmond into a majority-Black, low-income
city. Meanwhile, Audubon chapters were largely white and typically
focused on communities where the bulk of their membership lived.
    In recent years, Golden Gate Audubon has expanded activities
in Richmond. GGAS’s Eco-Education program provides hands-on

                                                                                                                                        Rusty Scalf
nature education in several Title 1 (low-income) elementary schools
there, and our popular Osprey nest cam recently completed a fifth
                                                                         Map of new Richmond count circle and nearby count circles.
season along the Richmond shoreline.
    Some GGAS members including Bob Lewis and Rusty Scalf
looked into starting a Richmond count about ten years ago. But when
they tried to draw a 15-mile circle, they couldn’t do it without over-
lapping small parts of existing counts such as Oakland and Benicia.
    This summer, Lewis and GGAS Board President Eric Schro-
eder decided to revive the idea. Glenn Phillips heartily agreed and
approached National Audubon to green-light a Richmond count.
But National refused, citing the issue of overlapping territory.
    “We decided to just do it anyway,” Lewis said. “We don’t need
National. We can call it a GGAS count or unofficial count, with the
idea that someday National will view all our data and see the light.”
    A Richmond count offers exciting possibilities: GGAS members
living in Richmond will finally have a count of their own. Count
organizers can reach out and engage Richmond residents—includ-
ing youth—who are new to birding. The count will generate data on
bird populations that can be used to advocate for wildlife in debates
like the current fight over the future of Point Molate.
    The first-ever Richmond CBC is scheduled for Sunday, Janu-
ary 2, 2022. Want to take part? Check the GGAS website in early
                                                                                                                                        Bob Lewis

November, or contact Richmond CBC Compilers Derek Heins and
Karyn Noel at RichmondCBC@goldengateaudubon.org.
                                                                         Black Oystercatchers are found along the Richmond shoreline.

6   THE GULL   fall 2021
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donations                                                                                                       roster

                                                                                                                board of directors
                                                                                                                President
Thank you for being part of our donor community.                                                                Eric Schroeder

We are deeply appreciative of every individual, business, and organization who                                  Vice President and Co-Chair of EBCC
                                                                                                                Laura Cremin
supports Golden Gate Audubon. In this issue, we recognize major donors and
                                                                                                                Secretary and Co-Chair of Development
recurring monthly donors from the past year, September 1, 2020 through August 31,                               Carol Baird

2021. Donors of all types and amounts will be recognized in our Annual Report.                                  Treasurer and Chair of Finance Committee
                                                                                                                Bruce Mast

                                                                                                                Rebekah Berkov, Amy Chong, Blake Edgar,
Major Donors                Jacqueline Smalley          Eliza Greene & James          Cynthia Naton             Whitney Grover, Derek Heins,
                            Jill Spangenberg              Tiemstra                    Glenn Nevill              Susan MacWhorter, Christine Okon,
$10,000 and above           Geraldine Young             Linda Gregory                 Martin Nicolaus           David Robinson, Dan Roth, Christina Tarr
Anonymous                                               Mary Gutekanst                Ilene Oba
                                                                                                                staff
National Audubon            Wildlife                    Michele & Jerry               Christine Okon
                                                          Harrison                    Madeline Ono              Executive Director
 Society
                            Guardians                   Rowena Henry                  Patrick Owens             Glenn Phillips, 510.843.2222 ext. 1002
National Fish & Wildlife
                                                                                                                gphillips@goldengateaudubon.org
 Foundation                 and Recurring               Lynda & Pearce Hurley         Glenn Phillips
Karen Rosenbaum &           Donors                      Marcia Hyman                  Marjorie Powell           Director of Development
                                                        Amanda Irish                  Megan Prelinger           Catherine Millar
 Ben McClinton              Thank you to these
                                                        Kathy Jarrett                 Madhav Puri               cmillar@goldengateaudubon.org
Salesforce.com              supporters whose
 Foundation                 automatic monthly           Simon Jeffery                 Maryann Rainey            Volunteer Services Manager
Eric Schroeder & Susan      contributions by credit     Dawn Rose Kearn               David Robinson            Janet Carpinelli
                                                        Tobin Kendrick                Tiffany Rose              jcarpinelli@goldengateaudubon.org
 Palo                       card sustain our work
University of California    throughout the year.        Elyse King                    Eric Schroeder            Communications Associate
 - Berkeley                                             Robert Kossler                Pamela Shandrick          Ryan Nakano
University of California    Richard Ables               Sam Krueger                   Scott Sommerfeld          rnakano@goldengateaudubon.org
 - San Francisco            Amy Bach                    Maureen Lahiff                J Stacey Sullivan         Youth Programs Manager
                            Cyndi Bakir                 Johan Langewis                Tan Suwannukul            Clay Anderson
$5,000 to $9,999            Peter Brastow               Mary Lee                      Sam Talarigo              canderson@goldengateaudubon.org
Carol Baird & Alan          Deborah Bullock             Elizabeth Littell             Jessica Turner
                                                                                                                Office Manager
  Harper                    Eugenia and Peter           Doris Lopez                   Wendy Jeane               Meshay Turner, 510.843.2222 ext. 1001
Mary Betlach                  Caldwell                  Alexandra Loucks                Warrington              mturner@goldengateaudubon.org
Flora Family                Leigh Castellon             Kate Marchetti                Evelyn Wilson             ggas@goldengateaudubon.org
  Foundation                Evelyn Dale                 Marsha Maslan                 Tamara Wood
Kathryn Jordan              Michael D’Aloisio           Kent Lee McDonald             Stephanie Woods           volunteer LEADERSHIP
Ardeen Russell-Quinn        Linda Deaktor               Patrick Meeker                Alana Yoel                Adult Education Chair
                            Erin Diehm                  Marie Mika                    David Zinniker            Maureen Lahiff, mlahiff@aol.com
$3,000 to $4,999            Frances Dupont              Roger & Win Mixter            Sam Zuckerman
                                                                                                                Field Trip Coordinator
Anonymous                   Elise Eichhorn                                                                      Christina Tarr, christina.tarr@gmail.com
Josh Jensen                 Jennifer Frost
                                                                                                                Travel with GGAS Coordinators
Pat Kirkpatrick & Sid       Sue Gallagher                Please know that we work hard to ensure the
                                                                                                                Cris Heins, Dawn Lemoine, and Eric Schroeder
 Wolinsky                   William Giddens              accuracy of this list. If your name has been omitted   travelprogram@goldengateaudubon.org
Miles and Mel McKey         Susan Greef                  or misspelled, let us know at 510.843.2222.
Regina Phelps               Gerard Green                                                                        MISSION STATEMENT
                                                                                                                Golden Gate Audubon Society engages people
                                                                                                                to experience the wonder of birds and to translate
                                                                                                                that wonder into actions which protect native bird
    2021 Osprey Nest Cam Season                                                                                 populations and their habitats.

    Comparing the fifth season of our live Osprey nest cam to fine wine, we’d say it was a really good          ABOUT GOLDEN GATE AUDUBON society
                                                                                                                The Golden Gate Audubon Society was founded
    year. Rosie, the female of the pair, returned sooner than expected from her winter migration south.
                                                                                                                January 25, 1917. Golden Gate Audubon Supporting
    Eggs were laid by the end of March, a week earlier than usual. By early May, three chicks were              Membership is $35 per year. You can join or renew on
    successfully hatched.                                                                                       the website or through our Berkeley office.
       At the time of banding, it was thought the chicks were all male. Surprise! DNA results revealed          The Gull is published four times per year. Special
    two females and one male. With three healthy                                                                third-class postage paid in Oakland, CA. Send
    young fledglings to feed, Rosie and her mate                                                                address changes to the office promptly. The post
    Richmond brought a record 761 fish to the nest.                                                             office does not forward The Gull.

       The juveniles left the nest area along the                                                               Learn about upcoming Golden Gate Audubon
    Richmond shoreline between July 28 and                                                                      events every month! Send your name and email
                                                                                                                address to ggas@goldengateaudubon.org to receive
    August 24, at ages ranging from 86 to 115 days.                                                             our monthly e-newsletters.
    Like Rosie, they’ve likely headed south for the
                                                                                                                Golden Gate Audubon Society
    winter. But you can still catch avian action at
                                                                                                                2530 San Pablo Avenue, Suite G
    sfbayospreys.org, with occasional visits to the                                                             Berkeley, CA 94702
    nest by Richmond (who over-winters in the Bay                                                               Office hours: Monday through Thursday,
    Area) or other birds. And if you see a blue-banded                                                          10 a.m. – 5 p.m.
                                                                                                                Telephone: 510.843.2222
    Osprey while vacationing in Central America or
                                                                                                                goldengateaudubon.org
    Mexico, let us know!                                  Literal “empty nester” parents Rosie and              ggas@goldengateaudubon.org
    ­— Robin Banks, Osprey volunteer                      Richmond in early September.
                                                                                                                This issue of The Gull was published October 2021.

                                                                                                                                             fall 2021     THE GULL   7
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             4 Native Oysters at Pier 94                    5  Speaker Series                                          6 New CBC for Richmond
             Pier 94 turns out to be perfect for native     Burrowing Owls in the East Bay, and what                   Richmond’s abundant bird life and vibrant
             oysters, which support wildlife and buffer     Audubon California’s doing to protect the                  human community deserve a Christmas Bird
             the shoreline from sea level rise.             birds of our state from climate change.                    Count—and now they’re getting one.

             backyard birder

                                                                                         This species has a limited range on the west coast—from south-
                                                                                      ern Oregon to the tip of Baja. Within this range, it’s found in a
                                                                                      variety of habitats and has adapted well to urban and suburban areas:
                                                                                      The Oakland Christmas Bird Count has reported more Cal Towhees
                                                                                      each year since 2008 than any other CBC in the country.
                                                                                         In birding lingo the species is characterized as “highly sedentary,”
                                                                                      meaning it’s non-migratory and has a small home territory. If you’ve
                                                                                      got a pair in your backyard, you’re likely to find that they’re settled
                                                                                      there. But the more general meaning of “sedentary” doesn’t apply to
                                                                                      this species. These birds aren’t fast movers nor do they move far, but
                                                                                      they are constantly in motion, usually shuffling along the ground,
                                                                                      foraging for seeds and other vegetable matter, often making their
Rick Lewis

                                                                                      characteristic loud “chip” calls. According to research done nearly a
                                                                                      century ago by A. L. Dawson, these metallic-sounding notes serve a
             California Towhee.                                                       range of purposes, including keep-in-touch signaling, warning notes,
                                                                                      and even challenges.

                 The Togetherness of Towhees
                                                                                         During spring, towhee pairs defend their territories aggressively.
                                                                                      The male’s chip calls evolve into song by adding a trill at the end.
                              by eric james schroeder                                 The female builds the nest, which may be in a tree, shrub, or even

             b
                                                                                      on the ground. She also incubates the eggs, which hatch in about
                    irds of the World, the bible of avian lore, seems almost dis-     two weeks. But when it comes to child rearing, the males take a
                    missive of towhees as “little more than large New World           turn; the chicks need a high protein diet, so the foraging now focuses
             sparrows.” And California Towhees are a uniform plain gray/brown         on insects such as grasshoppers, caterpillars, spiders, beetles, wasps,
             with just a touch of cinnamon color on their throats and their vents     and ants. Chicks fledge at eight to eleven days and stay with their
             (their bottoms). Males are slightly larger than females; otherwise       parents for up to six weeks, by which time they’ve achieved their full
             they’re indistinguishable. Uniformly plain they may be, but Cal          adult size. And since California Towhees mate for life, if you do have
             Towhees are a beloved local bird.                                        a resident pair, you’re likely to see them for years to come.

             8   THE GULL   fall 2021
AltAmont turbines: still A threAt - Golden Gate Audubon Society AltAmont turbines: still A threAt - Golden Gate Audubon Society
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